In the given figure, chords AB and CD are intersecting each other at point L. Find the length of AB.
Answer & explanation
Correct answer: option 2
We know that,
LC × LD = LB × AL
We have,
LC = 6, CD = 11, LB = 4
AB = x
According to the question ,
6 × (6 + 11) = 4 × (4 + x)
= 4 + x = \(\frac{51}{2}\)
= 4 + x = 25.5
= x = 21.5